Self and william habeis



(No Model.) 2Sheets-Sheet 1. G. STEINFELS. I

, Screw Po1ishing Ma,0hin*e. No. 236,103. j Pa tg n t ed Dec. 28',1880.

(No Model.) 2 Sheets-Sheet 2..

G, STEI NFELS. Screw Polishing Machine. No. 2 36',1'03. Patented Dem-28,1880.

maggrwmnbanfil 1 NT F ICE NITED S'ITES CHARLES STEINFELS, OF ELIZABETH, NEW JERSEY, ASSIGN OR TO HIM- SELF AND 'WILLIAM HARRIS, OF SAME PLACE.

SCREW-POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 236,103, dated December 28, 1880. Application filed November 1, 1880. (No model.)

To all whom it may concern tributing-box B, and above box B is the feed- Be it known that I, CHARLES STEINFELS, hopper 0, having an opening in its bottom,in of Elizabeth,in the county ofUnion and State which is fitted a revolving roller, 61, having of New Jersey have invented a new and useflanges or pins, as shown, which regulate the 5 ful Improvement in Machines for Polishing discharge of thescrews into box B. The box 55 Screws, of which the following is a specifiea- B is fitted with inclined plates or shelves 6, tion. which are corrugated and terminate one above My improvements relate to machines for the other, so that the screws roll down by polishing the heads of screws, and have for gravity from one to the other shelf, and finally their object to construct an automatic madrop upon the plate 0, the corrugations serv- 6o chine which shall take the screws as fed in ing to make the discharge successive. mass and present them properly to the polish- The clutches b of the belt b are constructing-wheels. ed as shown most clearly in Figs. 6 and 7. f The invention consists in a feed-belt which is a post riveted to the belt and stiffened by a first receives and sorts the screws and delivbrace,f. g g are fingers pivoted on the upper 65 ers them,singly and uniformly, in afeed-wheel end of post f'to open and close in a horiprovided with nippers that take the screws zontal plane, and having their forward ends from the belt and deliver them, point first, to shaped to fit the screws. the nippers of a wheel or drum that presents On the bracef is hung a bent lever, g, the the heads to the grindingand polishing wheels; lower end of which extends through a slot in 70 in nippers of novel construction and mechthe belt, while the upper end is fitted with a anism for operating them properly, and in cerwedge, 9 extending between the rear ends of tain other novel details of construction, all fingers g, so that the fingers are opened and of which will be particularly described hereclosed by movement of lever g. The lever g inafter, with reference to theaccompanying is fitted with a spring, f that tends to re- 75 drawings. tain fingers 9 open. The wedge g is formed In the drawings, Figure 1 is a side elevaof two hinged pieces kept apart by springs, tion of the machine with the feed-box broken which allow for variations in size of screws. open. Fig. 2 is an end view, in section, on Beneath one end of belt I) are tubes or spouts line 00 a." of Fig. 1. Fig. 3 is a section on the h, the upper ends of which are made flaring, 8o plane of the axis, and Fig. 4 a section at right and the lower ends run together and termiangles to the axis, of the holding-wheel; and nate in a single spout, h. As shown in Fig. Figs. 5, 6, 7, and 8 are detail views, referred 2, the tubes are fitted where they connect with to hereinafter. hinged flaps k which, being moved by the 5 Similar letters of reference indicate correscrews passing through, prevent more than 85 spending parts. one screw passing at a time into the tube h,

a, a are the standards of a frame of suitable and thus prevent clogging, and also insure height, on which standards drums or pulleys the screws passing endwise. At the end of A Aare mounted. Around these drums is a tube h is a hinged flap, h.

flexible belt, b, which is fitted with numerous 1n suitable bearings beneath tube h is fitted o clutches, b, that are arranged in diagonal a receiving wheel or drum, D, as shown in Fig. lines across the belt, as illustrated in Fig. 8. 2, which wheel is shown in edge View in Fig.

On the frame above the pulleys'A a plate, 5, and is constructed'as follows: The wheel is c, is fixed a short distance above the upper formed of two disks, 1', of spring metal, se- 5 side of the belt. This plate, which I call the cured on a shaft a short distance apart. To 5 distributing-plate, is slotted lengthwise, or these disks, between the outer edges, V-shaped consists of a number of strips placed a dispieces z" are secured at regularintervals, which tance apart slightly more than the diameter pieces are so formed as to grasp and hold the of the screws. I heads of the screws when the sides of the drum Above one'endof the plate is fixed the disare pressed together. Between the griping- 10o pieces i the disks 11 are formed with inward flanges i which act to support the screws before they drop into the gripers.

At the sides of wheel D, and forward of tube h, there are fixed on the fame of the machine curved plates or segments 7;, which incline inward from the tube h, so as to press the sides of the wheel together as they pass between the segments, the sides springing outward again after clearing the segments.

At the forward side of wheel D is placed the polishing machinery, consisting of a holding-wheel, E, polishing-wheels l l l, hung in a frame, I, in position for polishing the faces of the screw-heads as they are carried around by wheel E, and polishing-disk P, for the sides of the heads. The wheel E is loose upon a fixed sleeve or hub, m, through which the shaft m passes loosely, such shaft having a continuous rotation given through medium of a wormwheel, m (Shown in Fig. 1.) The wheel D is hollow, as shown in Figs. 3 and 4, and has one side formed by a disk, E, on the center of which is a bevel-gear, a, meshing with a simi lar gear on a shaft, n, that connects by bevelgearing with the shaft of wheel D, so that wheels D E shall move together but in opposite directions. On the same side of wheel E are ratchet-teeth 0, that are engaged by a lever-pawl, 0, which is vibrated by an eccentric, 0", fitted on arevolving shaft and given a continuons rotation by suitable connections, so that the lever-pawl 0 acts to give wheel E, and consequently wheel I), an intermittentrotation. The wheel E is fitted at regular intervals with radial pins 1), which project into the chamber and are sustained by a fiange,1), while their outer ends are fitted with hinged fingers q, formed to receive the shanks of the screws between them. The wheel is formed with iiiclined lugs q at opposite sides of fingers q, andthefingers correspondinglyshaped, so that inward movement of pins 12 shall close the fingers together, suitable springs being provided to spread the fingers open when released by outward movement of the pins. The pins 1) are fitted with spiral springs g", which tend to move them inward, and thus close the fingers.

On the inner ends of the pins are loose bevelgears 1', meshing with a wheel, 1", that is fixed on shaft m. The gears r are fitted with radially-moving latch-pins 8, moved inward by springs and engaging with notches in pins 1) when the latter are at their inward position, so that the pins are connected with the gears.

On hub m is a cam-segment, t, over and in contact with which the pins 1) move during half or more of the revolution of wheel E, so that they are forced outward. By this construction the pins and nippers are given a rotary motion while being carried around with the wheel, and also have movement in and out.

The operation of the machine is as follows: The screws are placed in mass in hopper C, are fed one by one, by roller (1, to the inclined shelves 0, and pass down upon the slotted plate 0. Those that fall in line with the slots remain suspended by their heads, and these, when moved forward by the belt, move the others into line with the slots, so that all are finally suspended. The belt 1) moving beneath the plate with its clutches b in line with the slots, the post fear1-ies the screws forward in the slots until the belt reaches the pulley A, when, by contact with the pulley, the levers g are raised, the fingers g close on the screws, and they are carried out of the slots and around the pulley A to the tubes It, which, being placed to receive the screws at the moment they are relieved by the belt leavingthe pulley,the screws enter the respective tubes, head first, and pass in succession to the tube IL. The lower screw in the tubes rests on the flanges i of wheel 1) until, by rotation of the wheel, the gripers i receive the head, the segments 7 close the gripers, and the screw is carried out, the flap it giving way for it to pass. The screw is thus carried toward wheel E and presented, point first, to the gripers g, which close upon it the moment or before gripersi leave the segments k. The screws are thus presented successively to wheel E, and are taken up by the latter, which carries them into contact with the revolving polishing-wheels Z l. After passing the upper wheel, l, the pins 1) pass upon the cam 15, and are thereby forced outward, so that the screws drop. The successive operations are thus antomatically performed, and with rapidity.

I have shown five grooves in plate 0 and five tubes; but the number may be increased, the wheels D E being made proportionately large in order to give space for the increased number of gripers required. The gripers may also be arranged in two or more lines, if desired, and the tubes h h arranged in sets to correspond. For round headed screws the polishing-wheels I will be grooved.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In screw-polishing machines, the combination of feed-box B, slotted bed 0, moving endless belt I), provided with clutches b and carried by pulleys A, receiving-tubes h h, revolving wheel D, provided with gripers i, holding-wheel E, provided with clutches q, and polishing-wheels l P, substantially as shown and described, and arranged for the successive operations, as specified.

2. In screw-polishing machines, the combination of wheel D, provided with gripers fitted to take up and release the screws, wheel E, provided with clutching-fingers fitted for automatically receiving and releasing the screws, polishing wheels or disks, placed to act on the screws, and mechanism for giving simultaneous intermittent motion to the wheels D E, substantially as shown and described.

3. In screw-polishing machines, the automatic sorting and feed mechanism consisting of box B, provided with inclined shelves e, slotted bed or plate 0, traveling endless belt I), provided with clutches 1), tubes h h, and

receiving-Wheel D, provided with gripers t,

ing shaft m, fixed sleeve m, and. cam t, substantially as shown and described, for opera- :5 tion as specified. 6. In screw-polishing machines, the nippers b, consisting of post f, gripers g, lever g, wedge 9 and spring f combined with the slotted feed-belt b and pulley A, substantially 20 as shown and described, for operation as specified.

CHARLES STEINFELS. Witnesses WM. H. SALT, HENRY J. STRATEMEYER, Jr. 

